Term ends Oct 23, 2027 · Medium confidence
20-year base term ended Jan 24, 2025
Why Medium: A parent in the chain could not be resolved.
Held by Solution Champion Limited
Filed Jan 4, 2011 as application 12/984,558 · Granted Feb 17, 2015
Base term plus 1002 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Jan 24, 2005
Jan 24, 2005
Term ends
Oct 23, 2027
Oct 23, 2027
Granted
Feb 17, 2015
Feb 17, 2015
base term
patent term adjustment
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
1,002
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
26
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 1002 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. Confidence: Medium. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jan 24, 2005, when application 11/042,732, the earliest non-provisional in its chain, was filed (this one was filed Jan 4, 2011); a parent in its chain could not be resolved (the next row) | Jan 24, 2025 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +1002 days, USPTO patent term adjustment record | Oct 23, 2027 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 23, 2027 | Medium confidence |
This family
| US 7,918,723 | Lapsed on the fee record Apr 2023 | Apr 2023 |
| Application 11/198,218 | Abandoned not computed | not computed |
| US 7,914,368 | Lapsed on the fee record Mar 2023 | Mar 2023 |
| US 7,922,587 | In force no later than Jan 2027 | no later than Jan 2027 |
| US 8,308,559 | In force Jun 2029 | Jun 2029 |
| US 8,323,105 | In force Jun 2029 | Jun 2029 |
| US 8,210,920 | In force Feb 2028 | Feb 2028 |
| US 8,182,321 | In force Jan 2027 | Jan 2027 |
8 of 26 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Jun 26, 2013 Reel 30687, frame 133 | Chun, Jay | Solution Champion Limited | Assignment of Assignor's Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Oct 2027
Term ends Oct 23, 2027.
Note
The 1002 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
25
later US patents cite this one
That is top 25% of utility patents granted in 2015 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.